When editing articles that use numbered lists, I have run into the issue of not being able to customize. 

The biggest problem with this is when I need to continue a list from further up on the page, but I have edited a sub-list, and the numbering does not match what I need. I see no option to override/modify the numbering to achieve the desired list numbering/lettering. 

I am trying to avoid having to just manually adjust the margins and type in the numbers; I would prefer proper formatting. Is there a way to modify numbered lists that perhaps I have missed?